Analysis
- max time kernel
90s - max time network
125s - platform
windows10-2004_x64 - resource
win10v2004-20220331-en - submitted
01/04/2022, 13:23
General
- Target c7da2a4322387ee17b38c58f91ea3b2b.exe
- Size 995KB
- Sample220401-qmsv6abhe2
- SHA256 7fb2552e90c099f748e7c3a2ba045570ddc81d921b4df26bd47cb956baadd22a
Malware Config
Extracted
-
Protocol
smtp
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Host
webmail.microjoining.com
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Port
587
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Username
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Password
micro1
Extracted
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snakekeylogger
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Protocol
smtp
-
Host
webmail.microjoining.com
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Port
587
-
Username
-
Password
micro1
-
Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger Payload 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\c7da2a4322387ee17b38c58f91ea3b2b.exe"C:\Users\Admin\AppData\Local\Temp\c7da2a4322387ee17b38c58f91ea3b2b.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\aHjAUiTfvd.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aHjAUiTfvd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2A6B.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\c7da2a4322387ee17b38c58f91ea3b2b.exe"C:\Users\Admin\AppData\Local\Temp\c7da2a4322387ee17b38c58f91ea3b2b.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\c7da2a4322387ee17b38c58f91ea3b2b.exe"C:\Users\Admin\AppData\Local\Temp\c7da2a4322387ee17b38c58f91ea3b2b.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
c7da2a4322387ee17b38c58f91ea3b2b.exe.log
tmp2A6B.tmp
memory/1572-146-0x0000000006730000-0x00000000068F2000-memory.dmp
memory/1572-136-0x0000000000400000-0x0000000000426000-memory.dmp
memory/2804-138-0x00000000057A0000-0x00000000057C2000-memory.dmp
memory/2804-139-0x00000000060A0000-0x0000000006106000-memory.dmp
memory/2804-148-0x0000000007A70000-0x0000000007A8A000-memory.dmp
memory/2804-134-0x0000000005880000-0x0000000005EA8000-memory.dmp
memory/2804-153-0x0000000007DA0000-0x0000000007DA8000-memory.dmp
memory/2804-131-0x0000000001690000-0x00000000016C6000-memory.dmp
memory/2804-152-0x0000000007DC0000-0x0000000007DDA000-memory.dmp
memory/2804-151-0x0000000007CB0000-0x0000000007CBE000-memory.dmp
memory/2804-149-0x0000000007AF0000-0x0000000007AFA000-memory.dmp
memory/2804-140-0x0000000006110000-0x0000000006176000-memory.dmp
memory/2804-141-0x0000000006760000-0x000000000677E000-memory.dmp
memory/2804-142-0x0000000005245000-0x0000000005247000-memory.dmp
memory/2804-143-0x0000000007760000-0x0000000007792000-memory.dmp
memory/2804-144-0x00000000701D0000-0x000000007021C000-memory.dmp
memory/2804-145-0x0000000006D20000-0x0000000006D3E000-memory.dmp
memory/2804-150-0x0000000007D00000-0x0000000007D96000-memory.dmp
memory/2804-147-0x00000000080D0000-0x000000000874A000-memory.dmp
memory/4456-127-0x0000000005670000-0x000000000567A000-memory.dmp
memory/4456-125-0x0000000005BB0000-0x0000000006154000-memory.dmp
memory/4456-124-0x0000000000BB0000-0x0000000000CB0000-memory.dmp
memory/4456-126-0x00000000056A0000-0x0000000005732000-memory.dmp
memory/4456-128-0x00000000090C0000-0x000000000915C000-memory.dmp